Pepper: PPB_VideoDecoder software-only mode.

ppapi/api/pp_codecs.idl

 /* Copyright (c) 2014 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 /**
  * Video profiles.
  */
 enum PP_VideoProfile {
   PP_VIDEOPROFILE_H264BASELINE = 0,
   PP_VIDEOPROFILE_H264MAIN = 1,
   PP_VIDEOPROFILE_H264EXTENDED = 2,
   PP_VIDEOPROFILE_H264HIGH = 3,
   PP_VIDEOPROFILE_H264HIGH10PROFILE = 4,
   PP_VIDEOPROFILE_H264HIGH422PROFILE = 5,
   PP_VIDEOPROFILE_H264HIGH444PREDICTIVEPROFILE = 6,
   PP_VIDEOPROFILE_H264SCALABLEBASELINE = 7,
   PP_VIDEOPROFILE_H264SCALABLEHIGH = 8,
   PP_VIDEOPROFILE_H264STEREOHIGH = 9,
   PP_VIDEOPROFILE_H264MULTIVIEWHIGH = 10,
   PP_VIDEOPROFILE_VP8_ANY = 11,
   PP_VIDEOPROFILE_VP9_ANY = 12,
   PP_VIDEOPROFILE_MAX = PP_VIDEOPROFILE_VP9_ANY
 };
 
 /**
+ * Hardware acceleration options.
+ */
+enum PP_HardwareAcceleration {
+  /** Create a hardware accelerated resource only. */
+  PP_HARDWAREACCELERATION_ONLY = 0,
+
+  /**
+   * Create a hardware accelerated resource if possible. Otherwise, fall back
+   * to the software implementation.
+   */
+  PP_HARDWAREACCELERATION_WITHFALLBACK = 1,
+
+  /** Create the software implementation only. */
+  PP_HARDWAREACCELERATION_NONE = 2
+};

[Tom Sepez, 2014/08/22 17:13:01]

nit: generally, the patter is to add here:
  PP_HARDWAREACCELERATION_LAST = PP_HARDWAREACCELERATION_NONE
and use that in the IPC macro, so that new values can be added by chaning this
file only without having to touch the IPC header.

[bbudge, 2014/08/22 21:24:52]

Done.

+
+/**
  * Struct describing a decoded video picture. The decoded picture data is stored
  * in the GL texture corresponding to |texture_id|. The plugin can determine
  * which Decode call generated the picture using |decode_id|.
  */
 struct PP_VideoPicture {
   /**
    * |decode_id| parameter of the Decode call which generated this picture.
    * See the PPB_VideoDecoder function Decode() for more details.
    */
   uint32_t decode_id;
@@ skipping 12 matching lines @@
    *
    * The pixel format of the texture is GL_RGBA.
    */
   uint32_t texture_target;
 
   /**
    * Dimensions of the texture holding the decoded picture.
    */
   PP_Size texture_size;
 };